| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a wireless apparatus which is entirely downsized, and the characteristic of the antenna system of which is enhanced. <P>SOLUTION: Forming a notch part 6 to a shield case 4 made of a conductive material for covering and accommodating a high frequency wireless circuit 3 provided on a printed wiring board 2 into the inside and feeding power to the notch part 6 act the shield case 4 like a slot antenna and also shield unnecessary electromagnetic waves emitted from the high frequency wireless circuit 3 by the shield case 4. Or part of the notch 6 formed to the shield case 4 is opened to form a notch antenna. The entire wireless apparatus is downsized by acting the shield case 4 like an electromagnetic shield member and also like the slot antenna or the notch antenna in this way. <P>COPYRIGHT: (C)2004,JPO</p> |
